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- CN3
- Service Manual
Kawai CN3 Service Manual - ■ Key Cover Assembly
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– 5 –
No
Code No.
Parts Name
Rosewood
Cherry
Mahogany
–
272669
272670
272671
Key Cover Assy
1
948099
Key Cover Back Angle
2
941605
Key Cover Shaft
3
947934
947935
947934
Key Cover Handle
4
812601
Key Cover Edge (Left)
5
812697
Key Cover Edge (Right)
6
948111
948112
948113
Key Cover
7
811290
Key Cover Pinion
8
811210
Key Cover Holder
9
948114
948115
948116
Key Cover Rail
Screws
(M3x8)
Screws
(M3x8)
Screws
(M3x8)
Screws
(3x8)
Screws
(3x8)
Screws
(M3x10)
Screws
(3x10)
Screws
(M3x10)
9
8
8
8
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7
3
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6
1
2
■ Key Cover Assembly
Summary of CN3
Page 1
Kawai musical instruments manufacturing co., ltd. Manufacturing date april 2005 cn3 service manual se978e-s0504.
Page 2: ■ Contents
– 2 – ■ contents ■ specifications 88 keys, advanced hammer action iv maximum 96 27 piano 1, piano 2, electric piano, drawbar, church organ, harpsi & mallets, strings, choir & pad, bass reverb (5), chorus, tremolo, delay (3), rotary (2) equal (piano only), mersenne pure (major), mersenne pure (minor)...
Page 3: ■ Hardware List
– 3 – +binding head p-tite b-tite s-tite +truss head +pan head machine tapping #1 machine screw with washer tapping #1 a b ■ hardware list type size (a x b) remarks binding head b-tite 3 x 8 chromating binding head b-tite 3 x 12 chromating binding head p-tite 3 x 10 chromating (black) binding head p...
Page 4: ■ Case Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 4 – ■ case assembly 11 screws (4x12) screws (4x12) screws (4x12) screws (4x12) screws (m4x12) screws (4x12) kep-065 kt-027 kep-064 kep-066 kep-126 screws (3x10) screws (4x12) kep-068 screws (3x8) screws (3x8) scr...
Page 5: ■ Key Cover Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 5 – no code no. Parts name rosewood cherry mahogany – 272669 272670 272671 key cover assy 1 948099 key cover back angle 2 941605 key cover shaft 3 947934 947935 947934 key cover handle 4 812601 key cover edge (le...
Page 6: ■ Stand Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 6 – screws (6x50) screws (m6x25) screws (m6x25) plain washer spring washer screws (6x50) screws (4x20) screws (4x14) screws (4x14) screws (4x25) screws (4x20) plain washer spring washer screws (4x20) screws (4x20...
Page 7: ■ Panel Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 7 – ■ panel assembly screws (m3x8) 7 4 5 10 12 9 8 4 5 3 2 1 6 11 screws (m3x8) screws (m3x8) screws (m3x8) screws (m3x8) kep-060 kep-061 kep-059 kep-058 no code no. Parts name rosewood cherry mahogany 1 948098 c...
Page 8: ■ Top Board Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 8 – ■ top board assembly no code no. Parts name rosewood cherry mahogany – 272672 272673 272674 top board general assy – 272675 272676 272677 music rack assy 1 941584 top board metal rail 2 945695 945700 948120 m...
Page 9
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 9 – 17 13 12 16 10 15 14 15 14 11 1 5 6 2 18 7 8 3 4 9 ■ keyboard unit (rg88 type) no. Code no. Parts name description q’ty 814849 complete keyboard unit 1 1 814651 white key (c) 7 814652 white key (d) 7 814653 w...
Page 10
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 10 – 2 2 1 1 1 open snap ring pliers grasp white key fulcrum point 2 black key stopper fulcrum point stopper fulcrum point ■ keyboard disassembling procedure first, remove the keyboard fixing screws (10 pcs.) at ...
Page 11: ■ Parts List
– 11 – code no. Parts name q'ty parts number remarks model 237702 p.W.B. Assy 1 kep-126 (11) cpu (us,au) 237703 p.W.B. Assy 1 kep-126 (12) cpu (ge120,cd,cg,ge230) 237704 p.W.B. Assy 1 kep-058-061,072 (4) panel,volume 237705 p.W.B. Assy 1 kep-064-068 (26) amp,hp,jack,led,inlet 120v 237706 p.W.B. Assy...
Page 12
– 12 – code no. Parts name q'ty parts number parts address model 812215 cpu 1 mb91101apf-g u2 814414 tg 1 k022-fp u6 814435 reset ic 1 bd5245 fve-tr u29 810368 regulator 1 njm78l05ua-te1 u17 813047 regulator 1 µ pc2933at-e1 u27 812219 op-amp 4 njm4580e-t1 u13,14,18,22 237707 flash rom 1 kp441-f9fp u...
Page 13
– 13 – kep-058 (volume) 804978 slide volume 1 rs30112ac00qa vr1 kep-059 (panel l) 813111 led 11 el3105vrt/tr1-11 (a) led1,2,3,4,5,6,7,8,9, 10,11 800625 diode 11 1ss133t-77 d1,2,3,4,5,6,7,8,9, 10,11 808345 switch 11 ksh0612at / evq21305r sw1,2,3,4,5,6,7,8,9, 10,11 kep-060 (panel r) 812220 ic 1 hd74hc...
Page 14
– 14 – code no. Parts name q'ty parts number parts address model kep-064 (jack) 800676 ic 1 njm4558d/m5218ap u1 812222 ic 1 la6517 u5 806719 ic 1 pc900v u3 814530 ic 1 pst600d u2 812125 transistor 2 2sc3792 q3,4 812527 transistor 1 2sc5395-t12-e q6 808973 transistor 1 dta114esa-tp q5 810851 transist...
Page 15
– 15 – kep-066 (hp) 812297 retardant resistor 4 erds1fj68rt/cpfs1/2ct26a68rj r201,202,203,204 805764 emi coil 4 lfd648075600/sbt0160w l201,202,203,204 802576 phone jack 2 ykb21-5006n/htj-064-04a ja201,202 kep-067 (led) 814844 led 1 sel4117r tp2 led301 kep-068 (inlet) 811711 high voltage capacitor 1 ...
Page 16
– 16 – a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 941650 ph-05-0350 kep-064-cn2 kep-066-cn201 1 2 942195 ph-08-0200 kep-064-cn4 kep-065-cn101 1 3 940600 ph-09-0150 kep-060-cn4 kep-061-cn8 1 4 940545 ph-11-0250 kep-059-cn1 kep-060-cn5 1 5 948020 ph-02-0250...
Page 17: ■ Block Diagram
– 17 – a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 kep-059,060,061 kep-058 panel sw & led 7seg led x 3 volume panel kep-126 foot pedal keyboard pilot lamp kep-067 primary fuse power switch ac in trans- former kt-027 kep-068 ks16-007 (16cm) midi line in line ...
Page 18
– 18 – a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ■ p.W.B. Kep-126 (11) assembly [top] x : not mounted.
Page 19
– 19 – a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ■ p.W.B. Kep-126 (11) assembly [back] x : not mounted.
Page 20
– 20 – a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ■ p.W.B. Kep-126 (12) assembly [top] x : not mounted.
Page 21
– 21 – ■ p.W.B. Kep-126 (12) assembly [back] a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 x : not mounted.
Page 22
– 22 – 2 b a c d e f g h i j b a c d e f g h i j 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ■ p.W.B. Kep-126 circuit 1/4.
Page 23
– 23 – 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 b a c d e f g h i j k b a c d e f g h i j k ■ p.W.B. Kep-126 circuit 2/4.
Page 24
– 24 – b a c d e f g h i j b a c d e f g h i j 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ■ p.W.B. Kep-126 circuit 3/4.
Page 25
– 25 – 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 b a c d e f g h i b a c d e f g h i ■ p.W.B. Kep-126 circuit 4/4.
Page 26
– 26 – ■ p.W.B. Kep-058 – 061 (4) assembly a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 x : not mounted.
Page 27
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 27 – ■ p.W.B. Kep-058 – 061 circuit 1/3.
Page 28
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 28 – ■ p.W.B. Kep-058 – 061 circuit 2/3.
Page 29
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 29 – ■ p.W.B. Kep-058 – 061 circuit 3/3.
Page 30
– 30 – ■ p.W.B. Kep-064 – 068 (26) assembly a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 midi line in line out line out ac in headphone headphone x : not mounted.
Page 31
– 31 – a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 midi line in line out line out ac in headphone headphone ■ p.W.B. Kep-064 – 068 (27) assembly x : not mounted.
Page 32
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 32 – ■ p.W.B. Kep-064 – 068 circuit 1/3.
Page 33
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 33 – ■ p.W.B. Kep-064 – 068 circuit 2/3.
Page 34
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 34 – ■ p.W.B. Kep-064 – 068 circuit 3/3.
Page 35: ■ P.W.B. Kkb-015 Circuit
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 35 – ■ p.W.B. Kkb-015 circuit 8 3 1 c h 4 7 15 14 13 12 11 10 9 7 1-4 key 5-8 key 9-12 key 13-16 key 13-16 key 17-20 key 21-24 key 29-32 key 6 16 5 4 3 2 1 8 v 5 2 / z 3 7 4 8 3 1 c h 4 7 15 14 13 12 11 10 9 7 33...
Page 36: ■ Key Switch Matrix
– 36 – ■ key switch matrix a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 3 2 4 2 0 a 0 # a 0 b 1 c 1 # c 1 d 1 # d 1 e 1 f 1 # f 1 g 1 # g 1 a 1 # a 1 b 2 c 2 # c 2 d 2 # d 2 e 2 f 2 # f 2 g...